1、BRITISH STANDARD BS ISO 12656:2001 Micrographics Use of bar codes on aperture cards ICS 35.220.10; 35.040 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBS ISO 12656:2001 This British Standard, having been prepared under the direction of the DISC Board, was published under the
2、 authority of the Standards Policy and Strategy Committee on 7 September 2001 BSI 7 September 2001 ISBN 0 580 38463 2 National foreword This British Standard reproduces verbatim ISO 12656:2001 and implements it as the UK national standard. The UK participation in its preparation was entrusted by Tec
3、hnical Committee IDT/1, Document imaging applications, to Subcommittee IDT/1/2, Applications, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or Eu
4、ropean publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the ne
5、cessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee
6、any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, pages i to iv, pages 1 to 6, an insi
7、de back cover and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsReference number ISO 12656:2001(E) INTERNATIONAL STANDARD ISO 12656 First edition 2001-06-01 Micrographics Use of b
8、ar codes on aperture cards Micrographie Emploi de codes barres sur les cartes fentreii ISO 12656:2001(E)iii Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is n
9、ormally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part i
10、n the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3. Draft International Standards adopted by the tec
11、hnical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this International Standard may be the subject of pate
12、nt rights. ISO shall not be held responsible for identifying any or all such patent rights. International Standard ISO 12656 was prepared by Technical Committee ISO/TC 171, Document imaging applications, Subcommittee SC 2, Application issues. Annex A forms a normative part of this International Stan
13、dard.ISO 12656:2001(E) iv Introduction Aperture cards are widely used for the storage and distribution of technical drawings and associated documents. For more than twenty years, punched codes have been used to identify the cards. Recent developments in encoding methods have led to the introduction
14、of a number of printed codes that can be read by automated means. These machine-readable codes are simpler to apply than punched codes and require less expensive equipment. This International Standard has been prepared to ensure that machine-readable codes appear in a standard position with standard
15、 dimensions on each card, to facilitate the use of these machine-readable codes in automatic equipment.INTERNATIONAL STANDARD ISO 12656:2001(E)1 Micrographics Use of bar codes on aperture cards 1 Scope This International Standard specifies the type, dimensions, and positions of the coding on apertur
16、e cards that comply with ISO 3272-3. This International Standard is applicable to OCR characters, bar codes, Hollerith, and printed Hollerith codes. It is not applicable to compressed bar codes. 2 Normative references The following normative documents contain provisions which, through reference in t
17、his text, constitute provisions of this International Standard. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the m
18、ost recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. Members of ISO and IEC maintain registers of currently valid International Standards. ISO 1073-1:1976, Alphanumeric character sets for optical rec
19、ognition Part 1: Character set OCR-A Shapes and dimensions of the printed image ISO 1073-2:1976, Alphanumeric character sets for optical recognition Part 2: Character set OCR-B Shapes and dimensions of the printed image ISO 1682:1973, Information processing 80 columns punched paper cards Dimensions
20、and location of rectangular punched holes ISO 3272-3:1975, Microcopying of technical drawings and other drawing office documents Part 3: Unitized 35 mm microfilm carriers ISO 6586:1980, Data processing Implementation of the ISO 7-bit and 8-bit coded character sets on punched cards 3 Terms and defini
21、tions For the purposes of this International Standard, the following terms and definitions apply. 3.1 coding area area of aperture card, excluding aperture and build-up area, in which coded data (i.e. optical coding) may be recorded 3.2 machine readable code code, printed or punched on an aperture c
22、ard, that can be read automatically by suitable equipment 3.3 main message principal or only machine-readable message on an aperture cardISO 12656:2001(E) 2 3.4 message line or group of a machine-readable message code 4 Codes 4.1 General The code used on an aperture card shall be one of the codes sp
23、ecified in 4.2, 4.3, and 4.4. If it is necessary to use more than one code on one aperture card, codes shall be positioned so that they do not obscure each other. 4.2 OCR 4.2.1 General The font used shall be OCR-A as specified in ISO 1073-1 or OCR-B as specified in ISO 1073-2. The code lines shall b
24、e parallel to the longer edges of the aperture card. The maximum number of characters in any code line shall be 68. The nominal character height shall be 2,54 mm, and the nominal character pitch 2,54 mm. For cards with 80 columns, the position of the OCR characters shall correspond to the position o
25、f the eye-readable interpretation along the top of the face of the card as described in normative annex A. 4.2.2 Main message The distance from the top of the aperture card to the bottom of the code line of the main message shall be 4,34 mm 0,25 mm. The distance from the right-hand edge of the apert
26、ure card to the first character of the main message shall not be more than 178,72 mm, and the distance from the right-hand edge to the last character shall not be less than 10 mm. 4.2.3 Additional messages The minimum separation between any two messages shall be 6,35 mm. The maximum distance of any
27、character from either end of the card shall be 10 mm. 4.3 Bar code 4.3.1 General The bar code symbology shall be one of the following codes: code 39 (preferred); industrial code 2 of 5; interleaved code 2 of 5; symbology 128. The main bar code message shall be on the face of the aperture card. The c
28、ode line shall be parallel to the longer edges of the aperture card. The maximum number of characters in any message shall be 30. The unit bar code width shall be at least 0,19 mm, and the maximum character width shall be 0,29 mm. 4.3.2 Main message The main message shall be either in the position s
29、hown in Figure 1 or in the position shown in Figure 2.ISO 12656:2001(E) 3 Dimensions in millimetres Key 1 Approximate length of 30 characters of code 39 Figure 1 Main message position 1a Dimensions in millimetres Figure 2 Main message position 1bISO 12656:2001(E) 4 The minimum height of the main mes
30、sage in position 1a shall be 10 mm. The bottom line of this message shall be 80,80 mm 0,25 mm from the top edge of the card (as shown in Figure 1). This main message is the preferred message because it is suitable for both machine and hand-guided reading. The minimum height of the message in positio
31、n 1b shall be 2,54 mm. The bottom line of this message shall be 4,34 mm 0,25 mm from the top edge of the card (as shown in Figure 2). This main message is only suitable for machine reading. 4.4 Hollerith Requirements for punched Hollerith codes and related printing are given in ISO 6586 and ISO 1682
32、. For printed Hollerith code requirements, see annex A.ISO 12656:2001(E)5 Annex A (normative) Printed Hollerith code The black rectangles that form the printed Hollerith code shall be printed on the back of the aperture card in the positions for the punched holes specified in ISO 6586. The maximum n
33、umber of usable characters shall be 57. The number of defined column positions shall be 1 53 and 77 80. The number of rows shall be 12. The eye- readable interpretation of the printed column codes shall be placed along the top of the face of the aperture card as used for punched cards. It shall be i
34、n either the standard 80 position as specified in ISO 1682 or the 60 position printing format. For some applications, it can be helpful to have an eye-readable interpretation of the machine readable code on the aperture card. This interpretation shall not appear in those areas specified for the mach
35、ine readable code.ISO 12656:2001(E) 6 Bibliography 1 ISO 1681:1973, Information processing Unpunched paper cards Specification 2 ISO 10549:2000, Micrographics A6 size aperture cards 3 EN 799, Bar coding Symbology specifications “ Code 128” 4 EN 800, Bar coding Symbology specifications “ Code 39” 5 E
36、N 801, Bar coding Symbology specifications “ Interleaved 2 of 5”blankBS ISO 12656:2001 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at th
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